CN113721747B - Server and burn-in prevention circuit and method thereof - Google Patents
Server and burn-in prevention circuit and method thereof Download PDFInfo
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- CN113721747B CN113721747B CN202110866319.2A CN202110866319A CN113721747B CN 113721747 B CN113721747 B CN 113721747B CN 202110866319 A CN202110866319 A CN 202110866319A CN 113721747 B CN113721747 B CN 113721747B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The application discloses a server and a burn-in prevention circuit and method thereof. The application can monitor the temperature change in the server in real time and shut down the power protection system when the temperature is too high, and the application adopts a pure circuit to monitor the temperature change, thereby having higher reliability and faster monitoring speed; in addition, the application distinguishes different power supplies based on whether the normal operation of the server is influenced or not so as to determine whether to turn off the local power supply or the whole power supply of the server, thereby prolonging the working time of the server as much as possible and improving the use experience of users.
Description
Technical Field
The application relates to the field of server security, in particular to a server and a burn-in prevention circuit and method thereof.
Background
The server is used as basic equipment for bearing key services such as data operation, data storage, data processing and the like, and the security is particularly important. The most serious situation for a server is that a burn-in occurs, and the burn-in means that a circuit board of the server is damaged destructively, so that not only is a single server damaged, but also other cabinets and servers in a machine room are more likely to be at risk. Thus, in server design, burn-in protection board design is a significant part of design.
At present, a plurality of temperature sensors are mainly designed on a circuit board in a server to detect temperature information of all components in the system, and the temperature information is transmitted to a BMC (BaseboardManagement Controller ) through an I2C bus, so that the BMC can monitor and display the temperature information in the server, and send an instruction for closing a system power supply to a CPLD (Complex Programmable logic device ) when the temperature information is too high, so that the occurrence of board burning caused by the too high temperature in the system is prevented.
However, the temperature information is transferred by the BMC to actively access the temperature sensors, but actually, because of the performance limitation of the BMC and the limitation of the I2C bus, the BMC cannot access each temperature sensor in real time, but sets a polling time, and accesses each temperature sensor one by one in each polling time, however, most of burn boards occur very quickly, if the burn boards are just in the polling time, the BMC cannot sense abnormal temperature information, so that effective protection cannot be realized, and the safety of a server is reduced.
Therefore, how to provide a solution to the above technical problem is a problem that a person skilled in the art needs to solve at present.
Disclosure of Invention
The application aims to provide a server, and a burn-out prevention circuit and a burn-out prevention method thereof, which can monitor temperature change in the server in real time and shut down a power protection system when the temperature is too high; in addition, the application distinguishes different power supplies based on whether the normal operation of the server is influenced or not so as to determine whether to turn off the local power supply or the whole power supply of the server, thereby prolonging the working time of the server as much as possible and improving the use experience of users.
In order to solve the above technical problems, the present application provides an anti-burn-in board circuit of a server, including:
the temperature acquisition circuit is used for respectively acquiring temperature information of different positions on a circuit board in the server in real time;
the temperature comparison circuit is used for comparing the temperature information of the target position with a preset temperature threshold corresponding to the target position in real time, and generating an overtemperature signal if the temperature information is greater than the preset temperature threshold; wherein the target position is any one of the positions;
the controller is used for dividing the power supplies corresponding to the different positions into a first power supply which does not influence the normal operation of the server and a second power supply which influences the normal operation of the server in advance; when an over-temperature signal of the target position is received, if a target power supply corresponding to the target position belongs to the first power supply, closing the target power supply; if the target power supply belongs to the second power supply, the power supply of the server is turned off step by step according to a preset shutdown time sequence.
Preferably, the temperature acquisition circuit comprises a plurality of temperature acquisition sub-circuits for acquiring temperature information of different positions on the circuit board one by one, and each temperature acquisition sub-circuit comprises a thermistor and a fixed resistor; wherein:
the first end of the fixed resistor is connected with a preset direct current power supply, the second end of the fixed resistor is connected with the first end of the thermistor, the common end is used as the output end of the temperature acquisition sub-circuit, and the second end of the thermistor is grounded.
Preferably, the temperature comparison circuit comprises a plurality of voltage comparators; wherein:
when the thermistor is an NTC resistor, the input positive ends of the voltage comparators are connected with a preset voltage threshold value, the input negative ends of the voltage comparators are connected with the output ends of the temperature acquisition sub-circuits one by one, and the output ends of the voltage comparators are connected with the controller;
when the thermistor is a PTC resistor, the input negative terminals of the voltage comparators are connected with a preset voltage threshold, the input positive terminals of the voltage comparators are connected with the output terminals of the temperature acquisition sub-circuits one by one, and the output terminals of the voltage comparators are connected with the controller.
Preferably, the controller is specifically configured to turn off the target power supply if the target power supply belongs to the first power supply when receiving a high-level signal output by the voltage comparator corresponding to the target position; if the target power supply belongs to the second power supply, the power supply of the server is turned off step by step according to a preset shutdown time sequence.
Preferably, the temperature comparing circuit is further configured to generate a non-overtemperature signal if the temperature information is not greater than the preset temperature threshold;
the controller is further configured to restart the target power supply if the non-overheat signal of the target position is received again after the target power supply is turned off.
Preferably, a power supply on the circuit board for supplying power to the server hard disk is used as the first power supply, and the rest power supplies on the circuit board are used as the second power supply.
Preferably, the burn-in prevention circuit of the server further comprises a delay circuit; wherein:
the plurality of input ends of the delay circuit are connected with the plurality of output ends of the temperature comparison circuit one by one, and the plurality of output ends of the delay circuit are connected with the controller;
the delay circuit is used for delaying a plurality of signals output by the temperature comparison circuit by preset time and then transmitting the signals to the controller for processing; the preset time is equal to the time from the power-on of the burn-in protection board circuit to the stable operation of the controller.
Preferably, the burn-in prevention circuit of the server further comprises a filter circuit; wherein:
the multiple input ends of the filter circuit are connected with the multiple output ends of the delay circuit one by one, and the multiple output ends of the filter circuit are connected with the controller;
the filter circuit is used for carrying out filter processing on the signals output by the delay circuit and transmitting the filtered signals to the controller for processing.
In order to solve the technical problem, the application also provides a burn-in prevention method of the server, which is applied to any one of the burn-in prevention circuits of the server, and comprises the following steps:
dividing power supplies corresponding to different positions on a circuit board in a server into a first power supply which does not influence the normal operation of the server and a second power supply which does influence the normal operation of the server in advance;
when an over-temperature signal of a target position is received, if a target power supply corresponding to the target position belongs to the first power supply, closing the target power supply; if the target power supply belongs to the second power supply, the power supply of the server is turned off step by step according to a preset shutdown time sequence.
In order to solve the technical problems, the application also provides a server, which comprises the burn-in prevention circuit of any one of the servers.
The application provides an anti-burning board circuit of a server, which comprises a temperature acquisition circuit, a temperature comparison circuit and a controller. The temperature acquisition circuit is used for respectively acquiring temperature information of different positions on the circuit board in real time; the temperature comparison circuit is used for generating an over-temperature signal if the temperature information of the target position is larger than a preset temperature threshold corresponding to the target position; the controller is used for dividing the power supplies corresponding to different positions into a first power supply which does not influence the normal operation of the server and a second power supply which influences the normal operation of the server in advance; when an over-temperature signal of a target position is received, if a target power supply corresponding to the target position belongs to a first power supply, turning off the target power supply; if the target power supply belongs to the second power supply, the power supply of the server is turned off step by step according to a preset shutdown time sequence. Therefore, the temperature change in the server can be monitored in real time, the power supply protection system is turned off when the temperature is too high, and the temperature change is monitored by adopting a pure circuit, so that the reliability is higher and the monitoring speed is higher; in addition, the application distinguishes different power supplies based on whether the normal operation of the server is influenced or not so as to determine whether to turn off the local power supply or the whole power supply of the server, thereby prolonging the working time of the server as much as possible and improving the use experience of users.
The application also provides a server and a burn-in prevention method thereof, and the server and the burn-in prevention circuit have the same beneficial effects.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required in the prior art and the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a burn-in protection circuit of a server according to an embodiment of the present application;
fig. 2 is a schematic diagram of a specific structure of an anti-burn-in board circuit of a server according to an embodiment of the present application;
fig. 3 is a flowchart of a burn-in prevention method for a server according to an embodiment of the present application.
Detailed Description
The application has the core of providing a server, a burn-in prevention circuit and a burn-in prevention method thereof, which can monitor the temperature change in the server in real time and turn off a power protection system when the temperature is too high, and the application adopts a pure circuit to monitor the temperature change, thereby having higher reliability and faster monitoring speed; in addition, the application distinguishes different power supplies based on whether the normal operation of the server is influenced or not so as to determine whether to turn off the local power supply or the whole power supply of the server, thereby prolonging the working time of the server as much as possible and improving the use experience of users.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a burn-in protection circuit of a server according to an embodiment of the present application.
The burn-in prevention circuit of the server comprises:
the temperature acquisition circuit 1 is used for respectively acquiring temperature information of different positions on a circuit board in the server in real time;
the temperature comparison circuit 2 is used for comparing the temperature information of the target position with a preset temperature threshold corresponding to the target position in real time, and generating an overtemperature signal if the temperature information is greater than the preset temperature threshold; wherein the target position is any position;
the controller 3 is used for dividing the power supplies corresponding to different positions into a first power supply which does not influence the normal operation of the server and a second power supply which influences the normal operation of the server in advance; when an over-temperature signal of a target position is received, if a target power supply corresponding to the target position belongs to a first power supply, turning off the target power supply; if the target power supply belongs to the second power supply, the power supply of the server is turned off step by step according to a preset shutdown time sequence.
Specifically, the burn-in prevention circuit of the server of the application comprises a temperature acquisition circuit 1, a temperature comparison circuit 2 and a controller 3, and the working principle is as follows:
the temperature acquisition circuit 1 respectively acquires temperature information of different positions on a circuit board (such as a main board, a power board and a fan board) in the server in real time, and actively transmits the temperature information of different positions on the circuit board to the temperature comparison circuit 2. For temperature information at any position (referred to as a target position) on the circuit board, the temperature comparison circuit 2 performs the following operations: the temperature comparison circuit 2 compares the temperature information of the target position with a preset temperature threshold corresponding to the target position in real time, generates an overtemperature signal of the target position if the temperature information of the target position is greater than the preset temperature threshold corresponding to the target position, and actively transmits the overtemperature signal of the target position to the controller 3.
The controller 3 divides the power sources corresponding to different positions on the circuit board in the server into two power sources in advance: one is a power supply (referred to as a first power supply) that does not affect the normal operation of the server, and the other is a power supply (referred to as a second power supply) that affects the normal operation of the server. When the controller 3 receives an over-temperature signal of the target position, if a power supply corresponding to the target position (called a target power supply) belongs to a first power supply, it is indicated that the turning-off of the target power supply does not influence the normal operation of the server, the controller only needs to turn off the target power supply (local power supply turning-off); if the target power supply belongs to the second power supply, the power supply of the server is turned off step by step according to a preset power-off time sequence (the whole power supply of the server is turned off) when the target power supply is turned off to influence the normal operation of the server.
Therefore, the temperature change in the server can be monitored in real time, the power supply protection system is turned off when the temperature is too high, and the temperature change is monitored by adopting a pure circuit, so that the reliability is higher and the monitoring speed is higher; in addition, the application distinguishes different power supplies based on whether the normal operation of the server is influenced or not so as to determine whether to turn off the local power supply or the whole power supply of the server, thereby prolonging the working time of the server as much as possible and improving the use experience of users.
Based on the above embodiments:
referring to fig. 2, fig. 2 is a schematic diagram of a specific structure of an anti-burn-in board circuit of a server according to an embodiment of the present application (the number of elements in the drawing is only one embodiment, and the number of elements actually arranged in the circuit cannot be limited).
As an alternative embodiment, the temperature acquisition circuit 1 comprises a plurality of temperature acquisition subcircuits for acquiring temperature information at different positions on a circuit board one by one, and each temperature acquisition subcircuit comprises a thermistor R1 and a fixed resistor R2; wherein:
the first end of the fixed resistor R2 is connected with a preset direct current power supply, the second end of the fixed resistor R2 is connected with the first end of the thermistor R1, the common end is used as the output end of the temperature acquisition sub-circuit, and the second end of the thermistor R1 is grounded.
Specifically, the temperature acquisition circuit 1 of the present application includes a plurality of temperature acquisition sub-circuits, each of which includes a thermistor R1 and a fixed resistor R2, and the working principle thereof is as follows:
the plurality of thermistors R1 may be disposed at different positions on the circuit board (positions where burn-in is likely to occur, such as a back panel power connector, a fan power connector, a GPU (graphics processing unit, graphics processor) card slot on a motherboard or a power panel, or positions where main power consumption outputs such as a fan panel are selected), and the thermistors R1 are disposed within the shortest possible distance between these positions. The thermistor R1 is configured to detect temperature information of a location where the thermistor R itself is located, and convert the detected temperature information into a voltage signal for processing by the temperature comparison circuit 2.
For example, when the thermistor R1 is an NTC (Negative Temperature Coefficient, negative temperature coefficient resistor) resistor, if the temperature at the location where the NTC resistor is located increases, the resistance of the NTC resistor becomes smaller, and the voltage across the NTC resistor becomes smaller, that is, the voltage output from the temperature acquisition sub-circuit where the thermistor R1 is located becomes smaller.
When the thermistor R1 is a PTC (Positive Temperature Coefficient, positive temperature coefficient resistor) resistor, if the temperature at the location of the PTC resistor increases, the resistance of the PTC resistor increases, and the voltage across the PTC resistor increases, i.e., the voltage output from the temperature acquisition sub-circuit at which the thermistor R1 is located increases.
As an alternative embodiment, the temperature comparison circuit 2 comprises a plurality of voltage comparators D; wherein:
when the thermistor R1 is an NTC resistor, the input positive ends of the voltage comparators D are connected with a preset voltage threshold value, the input negative ends of the voltage comparators D are connected with the output ends of the temperature acquisition sub-circuits one by one, and the output ends of the voltage comparators D are connected with the controller 3;
when the thermistor R1 is a PTC resistor, the input negative terminals of the voltage comparators D are connected with a preset voltage threshold, the input positive terminals of the voltage comparators D are connected with the output terminals of the temperature acquisition sub-circuits one by one, and the output terminals of the voltage comparators D are connected with the controller 3.
Specifically, the temperature comparison circuit 2 of the present application includes a plurality of voltage comparators D whose operation principle is (described by taking a first thermistor, a first voltage comparator connected to the first thermistor as an example):
when the first thermistor is an NTC resistor, if the temperature of the position of the first thermistor is increased, the resistance value of the first thermistor is reduced, the voltage at two ends of the first thermistor is reduced, and when the voltage at two ends of the first thermistor is reduced to be smaller than a preset voltage threshold value, the first voltage comparator outputs a high-level signal (1, representing over-temperature); otherwise, the first voltage comparator outputs a low level signal (0, indicating no over-temperature).
When the first thermistor is a PTC resistor, if the temperature of the position of the first thermistor is increased, the resistance value of the first thermistor is increased, the voltage at two ends of the first thermistor is increased, and when the voltage at two ends of the first thermistor is increased to be greater than a preset voltage threshold value, the first voltage comparator outputs a high-level signal (1, representing over-temperature); otherwise, the first voltage comparator outputs a low level signal (0, indicating no over-temperature).
As an alternative embodiment, the controller 3 is specifically configured to, when receiving the high level signal output by the voltage comparator D corresponding to the target position, turn off the target power supply if the target power supply belongs to the first power supply; if the target power supply belongs to the second power supply, the power supply of the server is turned off step by step according to a preset shutdown time sequence.
Specifically, when receiving a high-level signal output by a voltage comparator D corresponding to a target position, the controller 3 of the application considers that the target position is over-heated, and then enters a power-off operation (if the target power belongs to a first power, the target power is turned off, and if the target power belongs to a second power, the power of the server is turned off step by step according to a preset power-off time sequence); when receiving the low-level signal output by the voltage comparator D corresponding to the target position, the target position is considered not to be over-heated, and the power-off operation is not performed.
As an alternative embodiment, the temperature comparing circuit 2 is further configured to generate a non-overtemperature signal if the temperature information is not greater than a preset temperature threshold;
the controller 3 is further configured to restart the target power supply if the non-over-temperature signal of the target position is received again after the target power supply is turned off.
Further, the temperature comparing circuit 2 generates the non-over-temperature signal when the temperature information of the target position is not greater than the preset temperature threshold corresponding to the target position (the above embodiment is mentioned, and the present application is not repeated here). Based on this, after turning off the target power supply, the controller 3 restarts the target power supply if it receives a non-overheat signal of the target position again, indicating that the temperature of the target position has been restored to normal.
As an alternative embodiment, the power supply on the circuit board for supplying power to the hard disk of the server is used as the first power supply, and the rest of the power supplies on the circuit board are used as the second power supply.
Specifically, the power supplies corresponding to different positions on the circuit board are divided into a first power supply which does not influence the normal operation of the server and a second power supply which does not influence the normal operation of the server, specifically, the power supply which supplies power to the hard disk of the server on the circuit board is used as the first power supply, and the rest power supplies (such as the power supply which supplies power to the fan of the server) on the circuit board are used as the second power supply, because the power failure of the hard disk of the server does not influence the normal operation of the server in the operation process of the server.
As an alternative embodiment, the burn-in protection circuit of the server further comprises a delay circuit 4; wherein:
the multiple input ends of the delay circuit 4 are connected with the multiple output ends of the temperature comparison circuit 2 one by one, and the multiple output ends of the delay circuit 4 are connected with the controller 3;
the delay circuit 4 is used for delaying a plurality of signals output by the temperature comparison circuit 2 by preset time and then transmitting the signals to the controller 3 for processing; wherein the preset time is equal to the time from the power-on of the burn-in prevention board circuit to the stable operation of the controller 3.
Further, the burn-in prevention circuit of the server of the application further comprises a delay circuit 4, and the working principle is as follows:
when the burn-in prevention circuit is powered on, the temperature acquisition circuit 1, the temperature comparison circuit 2 and the controller 3 are powered on to work. Considering that the controller 3 is not stable in the initial power-on operation, if the controller 3 processes the signal output by the temperature comparison circuit 2 at this time, an over-temperature erroneous judgment may occur, so the application adds the delay circuit 4 between the temperature comparison circuit 2 and the controller 3, and has the following functions: when the burn-in prevention circuit is powered on, the delay circuit 4 delays a plurality of signals output by the temperature comparison circuit 2 for a preset time and then transmits the signals to the controller 3 for processing, and the signals output by the temperature comparison circuit 2 are transmitted to the controller 3 after the delay is just until the controller 3 works stably, so that the over-temperature erroneous judgment caused by the instability of the controller 3 is avoided.
As an alternative embodiment, the burn-in protection circuit of the server further comprises a filter circuit 5; wherein:
the multiple input ends of the filter circuit 5 are connected with the multiple output ends of the delay circuit 4 one by one, and the multiple output ends of the filter circuit 5 are connected with the controller 3;
the filtering circuit 5 is configured to perform filtering processing on the plurality of signals output by the delay circuit 4, and transmit the plurality of filtered signals to the controller 3 for processing.
Further, the burn-in prevention circuit of the server of the present application further comprises a filter circuit 5, which has the following working principle:
considering that the signal output by the temperature comparison circuit 2 is possibly doped with an interference signal, so that the controller 3 generates over-temperature erroneous judgment, the application also adds a filter circuit 5 between the delay circuit 4 and the controller 3, and has the following functions: the filtering circuit 5 performs filtering processing on the plurality of signals output by the delay circuit 4 (i.e. the plurality of signals output by the temperature comparison circuit 2), and transmits the plurality of filtered signals to the controller 3 for processing, so as to avoid over-temperature erroneous judgment caused by doping interference signals in the signals output by the temperature comparison circuit 2.
It should be noted that, the functions of the controller 3, the delay circuit 4 and the filter circuit 5 of the present application may be implemented by using the original CPLD in the server.
Referring to fig. 3, fig. 3 is a flowchart of a method for preventing board burn of a server according to an embodiment of the application.
The burn-in prevention method of the server is applied to any one of the burn-in prevention circuits of the server, and comprises the following steps:
step S1: the power supplies corresponding to different positions on a circuit board in the server are divided into a first power supply which does not influence the normal operation of the server and a second power supply which influences the normal operation of the server in advance.
Step S2: when an over-temperature signal of a target position is received, if a target power supply corresponding to the target position belongs to a first power supply, turning off the target power supply; if the target power supply belongs to the second power supply, the power supply of the server is turned off step by step according to a preset shutdown time sequence.
The description of the burn-in prevention method provided by the present application refers to the embodiment of the burn-in prevention circuit, and the disclosure is not repeated here.
The application also provides a server, which comprises the burn-in prevention circuit of any server.
The description of the server provided by the present application refers to the embodiment of the burn-in protection circuit, and the present application is not described herein.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A burn-in prevention circuit for a server, comprising:
the temperature acquisition circuit is used for respectively acquiring temperature information of different positions on a circuit board in the server in real time;
the temperature comparison circuit is used for comparing the temperature information of the target position with a preset temperature threshold corresponding to the target position in real time, and generating an overtemperature signal if the temperature information is greater than the preset temperature threshold; wherein the target position is any one of the positions;
the controller is used for dividing the power supplies corresponding to the different positions into a first power supply which does not influence the normal operation of the server and a second power supply which influences the normal operation of the server in advance; when an over-temperature signal of the target position is received, if a target power supply corresponding to the target position belongs to the first power supply, closing the target power supply; if the target power supply belongs to the second power supply, gradually closing the power supply of the server according to a preset shutdown time sequence;
the temperature acquisition circuit comprises a plurality of temperature acquisition sub-circuits for acquiring temperature information of different positions on the circuit board one by one, and each temperature acquisition sub-circuit comprises a thermistor and a fixed resistor; wherein:
the first end of the fixed resistor is connected with a preset direct current power supply, the second end of the fixed resistor is connected with the first end of the thermistor, the common end is used as the output end of the temperature acquisition sub-circuit, and the second end of the thermistor is grounded;
the temperature comparison circuit comprises a plurality of voltage comparators; wherein:
when the thermistor is an NTC resistor, the input positive ends of the voltage comparators are connected with a preset voltage threshold value, the input negative ends of the voltage comparators are connected with the output ends of the temperature acquisition sub-circuits one by one, and the output ends of the voltage comparators are connected with the controller;
when the thermistor is a PTC resistor, the input negative terminals of the voltage comparators are connected with a preset voltage threshold value, the input positive terminals of the voltage comparators are connected with the output terminals of the temperature acquisition sub-circuits one by one, and the output terminals of the voltage comparators are connected with the controller;
the controller is specifically configured to, when receiving a high-level signal output by the voltage comparator corresponding to the target position, turn off the target power supply if the target power supply belongs to the first power supply; if the target power supply belongs to the second power supply, gradually closing the power supply of the server according to a preset shutdown time sequence;
the temperature comparison circuit is further used for generating a non-overtemperature signal if the temperature information is not greater than the preset temperature threshold value;
the controller is further configured to restart the target power supply if the non-overheat signal of the target position is received again after the target power supply is turned off;
the power supply on the circuit board for supplying power to the server hard disk is used as the first power supply, and the rest power supplies on the circuit board are used as the second power supply;
the burn-in prevention circuit of the server also comprises a delay circuit; wherein:
the plurality of input ends of the delay circuit are connected with the plurality of output ends of the temperature comparison circuit one by one, and the plurality of output ends of the delay circuit are connected with the controller;
the delay circuit is used for delaying a plurality of signals output by the temperature comparison circuit by preset time and then transmitting the signals to the controller for processing; the preset time is equal to the time from the power-on of the burn-in protection board circuit to the stable operation of the controller.
2. The burn-in prevention circuit of a server of claim 1, wherein the burn-in prevention circuit of a server further comprises a filter circuit; wherein:
the multiple input ends of the filter circuit are connected with the multiple output ends of the delay circuit one by one, and the multiple output ends of the filter circuit are connected with the controller;
the filter circuit is used for carrying out filter processing on the signals output by the delay circuit and transmitting the filtered signals to the controller for processing.
3. A burn-in prevention method for a server, applied to the burn-in prevention circuit for a server according to any one of claims 1 to 2, comprising:
dividing power supplies corresponding to different positions on a circuit board in a server into a first power supply which does not influence the normal operation of the server and a second power supply which does influence the normal operation of the server in advance;
when an over-temperature signal of a target position is received, if a target power supply corresponding to the target position belongs to the first power supply, closing the target power supply; if the target power supply belongs to the second power supply, gradually closing the power supply of the server according to a preset shutdown time sequence;
when an over-temperature signal of a target position is received, if a target power supply corresponding to the target position belongs to the first power supply, closing the target power supply; if the target power supply belongs to the second power supply, gradually turning off the power supply of the server according to a preset shutdown time sequence, including:
when a high-level signal output by a voltage comparator corresponding to the target position is received, if the target power supply belongs to the first power supply, the target power supply is turned off; if the target power supply belongs to the second power supply, gradually closing the power supply of the server according to a preset shutdown time sequence;
further comprises:
and after the target power supply is turned off, restarting the target power supply if the non-overheat signal of the target position is received again.
4. A server comprising the burn-in protection circuit of any one of claims 1-2.
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| CN109193562A (en) * | 2018-10-18 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of thermal-shutdown circuit and generic server of server master board |
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| CN112114647A (en) * | 2020-10-29 | 2020-12-22 | 苏州浪潮智能科技有限公司 | Power supply control method, system and device of server |
| CN112670948A (en) * | 2020-11-20 | 2021-04-16 | 山东云海国创云计算装备产业创新中心有限公司 | Board card protection method, system and device |
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| CN109193562A (en) * | 2018-10-18 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of thermal-shutdown circuit and generic server of server master board |
| CN109857614A (en) * | 2018-12-28 | 2019-06-07 | 曙光信息产业(北京)有限公司 | A kind of disaster tolerance device and method of rack server |
| CN112114647A (en) * | 2020-10-29 | 2020-12-22 | 苏州浪潮智能科技有限公司 | Power supply control method, system and device of server |
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